File: use-after-scope-temp.cc

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8~deb9u3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (21 lines) | stat: -rw-r--r-- 479 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
// RUN: %clangxx_asan %stdcxx11 -O1 -fsanitize-address-use-after-scope %s -o %t && \
// RUN:     not %run %t 2>&1 | FileCheck %s


struct IntHolder {
  int val;
};

const IntHolder *saved;

void save(const IntHolder &holder) {
  saved = &holder;
}

int main(int argc, char *argv[]) {
  save({argc});
  int x = saved->val;  // BOOM
  // CHECK: ERROR: AddressSanitizer: stack-use-after-scope
  // CHECK:  #0 0x{{.*}} in main {{.*}}use-after-scope-temp.cc:[[@LINE-2]]
  return x;
}